Acids and Bases

Question 1

Arrhenius Acid and Base

Answer 1

Acid: Dissociates to form excess H+ in solution
Base:: Dissociates to form excess OH- in solution

Question 2

Bronsted Lowry acid and base

Answer 2

Acid: H+ donor
Base:H+ acceptor

Question 3

Lewis Acid and Base

Answer 3

Acid: Accepts electron pair
Base: Donates Electron pair

Question 4

Buffering region

Answer 4

Where [HA] = [A-] and is the flattest part of the titration curve (resistant to PH changes)

Question 5

Half-Equivalence Point

Answer 5

Center of the buffering region, where [HA] -[A-]

Question 6

Equivalence Point

Answer 6

Steepest point of the titration curve ad occurs when the equivalents of acid present equal the equivalents of base added (vice versa)

Question 7

End point

Answer 7

The pH at which an indicator turns its final color

Question 8

What is the point of a buffer solution?

Answer 8

It is designed to resist changes in pH and has optimal buffering capacity within 1 pH point from its pKa